4 // Fraunhofer Institut fuer offene Kommunikationssysteme (FOKUS)
5 // Kompetenzzentrum fuer Satelitenkommunikation (SatCom)
6 // Stefan Bund <g0dil@berlios.de>
8 // This program is free software; you can redistribute it and/or modify
9 // it under the terms of the GNU General Public License as published by
10 // the Free Software Foundation; either version 2 of the License, or
11 // (at your option) any later version.
13 // This program is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the
20 // Free Software Foundation, Inc.,
21 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 \brief ClockService.test unit tests */
26 //#include "ClockService.test.hh"
27 //#include "ClockService.test.ih"
30 #include "ClockService.hh"
33 #include <boost/test/auto_unit_test.hpp>
34 #include <boost/test/test_tools.hpp>
37 ///////////////////////////////cc.p////////////////////////////////////////
42 struct ClockServiceTest
44 static boost::posix_time::ptime & base()
45 { return senf::ClockService::instance().base_; }
46 static boost::posix_time::ptime & heartbeat()
47 { return senf::ClockService::instance().heartbeat_; }
54 bool is_close_clock(senf::ClockService::clock_type a, senf::ClockService::clock_type b,
55 unsigned long delta = 10100000ul)
57 return (a<b ? b-a : a-b ) < delta;
60 bool is_close_pt(boost::posix_time::ptime a, boost::posix_time::ptime b,
61 boost::posix_time::time_duration delta = boost::posix_time::milliseconds(10) )
63 return (a<b ? b-a : a-b ) < delta;
66 void delay(unsigned long milliseconds)
69 ts.tv_sec = milliseconds / 1000;
70 ts.tv_nsec = (milliseconds % 1000) * 1000000;
71 while (nanosleep(&ts,&ts) < 0 && errno == EINTR) ;
76 BOOST_AUTO_UNIT_TEST(clockService)
78 senf::ClockService::restart(); // So we know, when the signal will be delivered
80 senf::ClockService::clock_type t (senf::ClockService::now());
82 BOOST_CHECK_PREDICATE( is_close_clock,
83 (t + senf::ClockService::milliseconds(100))
84 (senf::ClockService::now()) );
86 // We shift both heartbeat() and base() back 1 minute. This is the same as
87 // moving the current time forward 1 minute.
88 boost::posix_time::ptime b (senf::detail::ClockServiceTest::base());
89 boost::posix_time::ptime h (senf::detail::ClockServiceTest::heartbeat());
90 senf::detail::ClockServiceTest::heartbeat() -= boost::posix_time::minutes(1);
91 senf::detail::ClockServiceTest::base() -= boost::posix_time::minutes(1);
93 // Wait for SIGALRM and let the signal handler do the clock-skew detection
94 delay(senf::ClockService::CheckInterval*1000);
96 BOOST_CHECK_PREDICATE( is_close_pt,
98 (senf::detail::ClockServiceTest::base()) );
99 BOOST_CHECK_PREDICATE( is_close_pt,
100 (h+boost::posix_time::seconds(senf::ClockService::CheckInterval))
101 (senf::detail::ClockServiceTest::heartbeat()) );
103 BOOST_CHECK_PREDICATE( is_close_clock,
104 (t + senf::ClockService::milliseconds(1100))
105 (senf::ClockService::now()) );
107 senf::detail::ClockServiceTest::heartbeat() -= boost::posix_time::minutes(1);
108 senf::detail::ClockServiceTest::base() -= boost::posix_time::minutes(1);
110 // Let now() do the clock skew detection using getitimer() ...
112 BOOST_CHECK_PREDICATE( is_close_clock,
113 (t + senf::ClockService::milliseconds(1200))
114 (senf::ClockService::now()) );
118 ///////////////////////////////cc.e////////////////////////////////////////
125 // comment-column: 40
126 // c-file-style: "senf"
127 // indent-tabs-mode: nil
128 // ispell-local-dictionary: "american"
129 // compile-command: "scons -u test"